
%0 Journal Article
%A Clark-Lewis, JW 
%A Dainis, I 
%T Flavan derivatives. XX. A new glycoside and other extractives from <I>Acacia ixiophylla</I>: Rhamnitrin (rhamnetin 3&#945;-L-rhamnoside)
%J Australian Journal of Chemistry
%D 1968/02/01
%V 21
%N 2
%P 425-437
%K 
%R https://doi.org/10.1071/CH9680425
%U https://www.publish.csiro.au/paper/CH9680425 
%X Rhamnitrin, a new glycoside from the shrub Acacia ixiophylla, is shown to be quercetin 7-methyl ether 3&#945;-L-rhamnoside. A quercetin diglucoside (considered to be the 3,3'-diglucoside), quercitrin, queroetin, rhamnetin, apigenin, apigenin 7,4'-dimethyl ether, and (-)-epicatechin were also isolated. The extractive consisted mainly of mixtures of condensed tannins derived from 5,7,3',4'-tetrahydroxy-flavan-3-o1 and -3,4-diol monomers, and the lower polymers appear to be responsible for the antitumour activity of the extractive. 
